Last Updated September 19, 2023

 September 19, 2023

Inside this Peptide Sciences review, we’ll detail exactly what you must know about this research chemical vendor.

We’ll break down:

  • Is Peptide Sciences legit?
  • Are their products tested for purity?
  • Why do researchers buy peptides from this vendor?

If you’re a researcher considering purchasing peptides and other chemicals for experimentation, everything you need to know about this source/vendor can be found below.

But here’s the thing:

Peptide Sciences is our #1 recommended source for buying peptides online for good reason…

This company offers amazing, safe products with fast shipping and multiple payment options.

Read on to learn why Peptide Sciences tops our list of the best online retailers of research chemicals and peptides.

Peptides Sciences

Product Types: Research Chemicals and Peptides
Quality of Products: 5/5
Pricing: 3/5
Discounts: Available for Bulk Purchases
Alternatives: None, Best Peptides Vendor
Overall Ranking: 5/5

Disclaimer: contains information about products that are intended for laboratory and research use only, unless otherwise explicitly stated. This information, including any referenced scientific or clinical research, is made available for educational purposes only. Likewise, any published information relative to the dosing and administration of reference materials is made available strictly for reference and shall not be construed to encourage the self-administration or any human use of said reference materials. makes every effort to ensure that any information it shares complies with national and international standards for clinical trial information and is committed to the timely disclosure of the design and results of all interventional clinical studies for innovative treatments publicly available or that may be made available. However, research is not considered conclusive. makes no claims that any products referenced can cure, treat or prevent any conditions, including any conditions referenced on its website or in print materials.

Who is Peptide Sciences?

Peptide Sciences is a leading online source of the highest-grade research chemicals and peptides available for purchase by qualified researchers. Let’s explore the basics of research peptides and why Peptide Sciences is the best online vendor.

What are Peptides?

Peptides are amino acid chains that are vital to the healthy functioning of the human body. The field of synthetic peptides presents great potential for the research and development of therapeutic uses, from combating metabolic diseases to inflammation. Peptides are also being studied for their potential in diagnostics and vaccines.

Why Should You Purchase Only From a Trusted Peptide Vendor?

Given the importance of research peptides in pharmacological innovations, the quality and purity of these compounds should be non-negotiable. Unfortunately, many manufacturers produce low-quality research peptides with substandard practices, in part due to a relative lack of regulation in this burgeoning field. Lower levels of peptide purity and quality diminish both the safety and efficacy of these compounds in therapeutic applications.

What Sets Peptide Sciences Apart?

A number of things! We don't call these guys the premier online peptides source for no reason.

Here's a few:

  • Proven Quality

Peptide Sciences is the premier source of research peptides for the scientific community due to its uncompromising quality control methods at all phases of production, ensuring at least 99% purity in all its products. Based in the United States, Peptide Sciences produces all peptides domestically, adhering to the United States standards of quality—which are among the most rigorous in the world.

With the use of HPLC and mass spectrometry analysis, the testing experts at Peptide Sciences ensure the precision and accuracy of all available peptides’ sequential fingerprints. The trusted vendor partners only with stringently approved manufacturers to further guarantee the unmatched quality of their wide selection. Peptides are available primarily in injectable form, but select peptides may also be delivered in capsules and topicals.

  • Fast, Easy Shipping and Great Customer Service

Peptide Sciences stands out not only for its product quality and range, but for its exceptional customer service, pricing, and fast shipping around the globe. Domestic production enables the vendor to maintain low prices on premium products.

The website is sleek, accessible, and highly educational, with in-depth explanations of the company’s extensive research and products. Purchasing is easy for researchers with secure checkout and unbeatable shipping rates to locations worldwide.

This vendor truly fulfills its satisfaction guarantee on all levels, from product purity and range to client experience. You cannot beat that!

Peptides Science 1

Peptides Sold by Peptide Sciences

Peptide Sciences is renowned for its wide selection of high-quality research peptides. Here, we will break down the top three available options and provide links to additional outstanding offerings from the Peptide Sciences catalog.

The top 3 peptides from the research chemical vendor:

Peptide Sciences BPC-157

BPC-157 is pentadecapeptide that derives from Body Protection Compound, which is naturally present in human gastric juices. Its angiogenic effects are vital to restoring and protecting the gastrointestinal lining for healthy GI function [1].

Studies have shown that the peptide’s potential therapeutic applications include neuroprotection, tissue growth stimulation, and faster injury recovery [2, 3, 4]. Clinical trials to date suggest the safety and efficacy of BPC-157 in a range of therapeutic contexts [5].

Peptide Sciences TB-500

TB-500 is a synthetic version of thymosin-beta 4, a 43 amino acid protein that is present in most animal cells. The peptide regulates actin and boosts angiogenesis to promote cellular repair and regeneration [6].

Its potential therapeutic applications include increased wound healing rates, improved cardiovascular health, anti-aging effects, and the treatment of inflammatory diseases [7, 8]. Studies indicate the safety of this peptide when properly administered by qualified researchers [8].

Peptide Sciences Melanotan 2

Melanotan 2 (MT-2) is a peptide analogue of alpha-melanocyte-stimulating hormone. The peptide binds to the melanocortin receptors to produce varied effects, most notably including darkening of the skin for a more tanned appearance, but also enhanced sexual arousal, appetite suppression, regulation of obsessive and addictive behaviors, and improved body composition [9, 10, 11]. It has a high safety profile when handled by qualified professionals.

Don’t miss these other excellent research compounds available from Peptide Sciences:

Payment and Shipping

Purchasing top-quality research chemicals online from Peptide Sciences is a breeze with the company’s commitment to customer satisfaction. After perusing the in-depth and informative Peptide Sciences website and selecting your research peptides for purchase, it’s time to handle payment and shipping details.

The vendor’s streamlined, accessible website provides a smooth check-out process with a range of 100% secure payment options accepted, as well as speedy, low-cost deliveries to almost anywhere in the world.

With adherence to the highest cryptographic protocols, the trusted source protects all personal client information. Researchers can pay for online purchases safely and easily with any of the following payment methods:

  • Most major credit cards
  • Electronic checks
  • Cryptocurrencies, such as Bitcoin and Ether
  • Third-party payment processors, including but not limited to Google Pay, Apple Pay, Venmo, Zelle, CashApp, etc.

In addition to an easily navigable website and flexible payment options, Peptide Sciences offers unbeatable global shipping rates and speeds, including:

  • Flat shipping rate of $15 for all orders, including shipping and handling.
  • Orders are typically dispatched within 24 hours of placement.
  • Guaranteed delivery within 2-3 business days for orders within the USA.
  • Delivery within 7-10 business days for orders in most countries outside the USA.
  • Deliveries are performed by trusted shipping partners, typically USPS.
  • Become a registered user to easily track your order on the vendor’s website.

Here are a few more high points of shopping with Peptide Sciences:

  • This top vendor offers price breaks on bulk purchases.
  • You may order online at any time, 24 hours per day and 7 days per week.
  • While returns are prohibited by strict regulations, Peptide Sciences guarantees the replacement of erroneous or incorrectly shipped orders.
  • Customer service representatives are readily available to address all client concerns rapidly via email.

It is easy to see how Peptide Sciences truly delivers on its satisfaction guarantee.

Peptides Science 2

Benefits of Buying from Peptide Sciences

When it comes to peptide purity and quality, business practices, and customer service, you can’t beat Peptide Sciences.

Let’s explore the features behind the vendor’s satisfaction guarantee…

Proven Quality and Purity of Peptides

Peptides are complex molecules, and their purity determines their safety and efficacy in therapeutic applications. Because the area of research peptides is a new and evolving field, there are relatively few regulations in place for the production and sale of quality peptides. However, pharmacology experts agree on the markers of quality in synthetic peptide production, and Peptides Sciences meets these standards with flying colors [12].

To ensure that their marketed peptides are at least 99% pure and correctly identified, the qualified experts at Peptide Sciences use the following state-of-the-art production methods in strict compliance with Good Manufacturing Practice standards:

  • High performance liquid chromatography (HPLC)
  • Mass spectrometry (MS)

These methods ensure the correct sequential fingerprints of the peptides with great precision and accuracy. Care is taken at every step of the process to deliver products of unmatched quality at affordable prices.

Peptide Sciences is recognized not only as an exemplar of quality but as a vanguard name in peptide innovations and research. A purchase from Peptide Sciences delivers the best product in the industry.

Fast, Easy, and Secure Payment and Shipping

Peptide Sciences accepts multiple forms of payment on its secure website, so checking out is quick and painless. Whether you pay with a credit card, crypto, or a third-party processor, Peptide Sciences has you covered.

While many online retailers over-charge for shipping in limited zones, Peptide Sciences charges a flat $15 shipping fee on all orders from around the world, so clients aren’t subject to exorbitant or hidden costs. Deliveries are made in partnership with only reputable delivery services. Orders go out within 24 hours of placement, and domestic deliveries are guaranteed to arrive within just 2-3 business days. Global orders are guaranteed within 7-10 business days, and all orders are trackable online.

Outstanding Customer Service

With one glance at Peptide Sciences’ educational website, it is evident that the vendor places a premium on client care. The site’s lucid product descriptions, informative articles, and detailing of transparent manufacturing practices indicate the company’s penchant for a great client experience from start to finish. Customer service representatives are readily available to address client concerns through email, and the website is open for business 24/7.

As part of its commitment to guaranteed satisfaction, Peptide Sciences replaces incorrect or mistakenly shipped items free of charge. The company’s efficient and domestic manufacturing practices allow it to maintain low prices on products of leading-edge quality. It also offers lowered prices on bulk purchases to keep all clients happy.

When it comes to assured product quality, ease of ordering, and client services, look no further than Peptide Sciences, the standard bearer of online peptide retailers.

Buy from the #1 online Peptides vendor in the world...

Downsides of Buying from Peptide Sciences

The results of our expert survey have yielded few downsides to buying from Peptide Sciences.

However, here we will address only two potential drawbacks that have arisen…

Premium Price

A cursory comparison of the price points of various online peptide vendors may show that products from Peptide Sciences cost slightly more than other companies. While this may be true, we believe that the small premium on Peptide Sciences products is eclipsed by the unmatched and assured quality of their products. Due to the complexity and relative lack of regulation in research peptide production, manufacturers can cut corners with deleterious effects on peptide quality, safety, and efficacy [12]. In considering the golden standard of Peptide Sciences, their prices are a steal!

Only Carries Peptides

True to its name, Peptide Sciences specializes in research peptides and does not carry some other popular classes of bioactive chemicals. One example is selective androgen receptor modulators (SARMs), compounds that act on androgen receptors to produce results similar to anabolic steroids.

SARMs are chemically distinct from peptides and require different production methods for safe and effective therapeutic applications [13]. Unfortunately, this field is also lacking in regulation, and medical experts advise against the potential dangers of purchasing SARMs from unqualified online sources [14]. In Peptide Sciences’ commitment to quality, the vendor does not sell SARMs.

Clients can purchase from Peptide Sciences with the quality assurance that comes with the company’s specialized knowledge in the field of research peptides. All groundwork and development of their products are geared toward producing the highest-grade peptides available for qualified researchers, making it the preferred source within the scientific community.

Peptides Science 3

Peptide Sciences Reviews from Customers

Don’t take our word for it! Let’s take a look at what some customers of Peptide Sciences have to say about the company.

Check out these glowing, five-star reviews on the trusted consumer review website Trustpilot:

“Peptide Sciences is a legit and very professional company. Their products are of the highest quality and purity and the customer service is outstanding. I have worked with a few other companies previously, but they are not even close to the quality of Peptide Sciences. You get what you pay for. I will continue to use them for all my peptide needs. Thank you for your excellent products and service.” [15]

Wow! This other Trustpilot user agrees:

“I've ordered from PS numerous times and the package comes quickly and the product is great. CS is great too. I once ordered the wrong product and they quickly updated my order. The new product was a little less expensive so they threw in an additional vial for less than the cost of one vial. Great company overall. When ordering peptides they are my go-to.” [15]

This Reddit user also recommends Peptide Sciences:

“Great products and great customer service. Super legit” [16]

With such great reviews, it’s clear that these guys  are the best online source for high-quality peptides.

Is Peptide Sciences Legit?

Yes! Peptide Sciences is a legit name in the online research peptide and chemical market for these reasons.

Guaranteed Quality

Clients and industry experts agree that Peptide Sciences is a leader in the manufacture and sale of research peptides. The USA-based company is a favorite source in the scientific community due to its rigorous standards of production, which encompass the following:

  • All products are manufactured domestically and in compliance with America’s leading quality control measures, including partnerships with ISO 9001:2008 and WHO/GMP-approved manufacturers to guarantee pure peptides at the best prices.
  • Peptide purity is achieved with strict control measures at all phases of the production process, including HPLC and mass spectrometry analysis in conjunction with Good Manufacturing Practice mandates.

Great Business Practices and Customer Service

Satisfied clients agree that Peptide Sciences provides not only the best products but outstanding service all around. How does the vendor achieve this?

  • Peptide Sciences partners with only reputable manufacturing and shipping services.
  • The vendor protects client privacy online with cutting-edge SSL technology. Purchases and personal data are 100% secure with the highest-grade encrypted privacy assurance.
  • With no hidden fees, accessible customer service agents, and transparency at every step, Peptide Sciences is a legitimate and trusted online retailer with proven quality assurance.

The leading supplier to qualified scientific researchers is your best choice for outstanding research peptides, conveniently available online and rapidly shipped to your door. Glowing client reviews verify the company’s unshakeable satisfaction guarantee.

Now that’s what we call legit!

Buy from the #1 online Peptides vendor in the world...


Is There a Peptide Sciences Discount Code?

There are no discount codes currently available.

Are Peptides Legal?

Yes, peptides are legal across the United States for purchase and handling by qualified professionals for research purposes

Are Peptides a Steroid?

No, peptides are not anabolic steroids. They are distinct classes of chemicals, and peptides do not include androgens.

Where Does Peptide Sciences Produce Their Products?

Peptide Sciences produces its peptides domestically in the USA.

Does Peptide Sciences Test Their Products?

Yes, Peptide Sciences tests all its products in compliance with the highest pharmacological and manufacturing protocols.

Bacteriostatic Water for Injection

To get the most out of research peptides, it’s a must that you adhere to the standard handling methods of storage, injection, and reconstitution.

The list of required supplies consists of sterile insulin syringes, bacteriostatic water, alcohol wipes, and several other items that may be challenging to acquire.

While many researchers may sink time and money scouring the web to purchase all these items from various sources, you don’t have to! We at have done the work to find just one top vendor that is guaranteed to meet your supply requirements.

This quality vendor streamlines your research by delivering all your supplies in convenient kits, assembled with care by experts. The offerings from will equip you for research success. Choose between two deluxe options.

Furnish your lab with the necessities in the starter research kit, which includes:

  • Bacteriostatic Water (30mL) – 3x
  • Insulin Syringes (0.5 cc/mL x 29g x ½) – 100x
  • Alcohol Prep Pads – 200x
  • Sterile Empty Glass Vial (10mL) – 1x
  • Large Needles + Syringes Combo (3cc x 21g x 1) – 10x

Experienced researchers may prefer the greater quantities available in the premium research, containing:

  • Bacteriostatic Water (30mL) – 5x
  • Insulin Syringes (0.5 cc/mL x 29g x ½) – 200x
  • Alcohol Prep Pads – 200x
  • Sterile Empty Glass Vial (10mL) – 2x
  • Large Needles + Syringes Combo (3cc x 21g x 1) – 20x

Order from to assure that you are always prepared for your research.

Buy Bacteriostatic Water from our #1 recommended vendor...

Peptide Sciences Review | Verdict

In conclusion, Peptide Sciences is the best online source to purchase research peptides.

The vendor delivers on its satisfaction guarantee with top-quality products made according to the highest industry standards and in partnership with reputed manufacturers. All Peptide Sciences offerings boast at least 99% purity levels, with a wide selection available at reasonable prices.

Plus, payment and shipping are easy, quick, and secure. You are in the best hands with their customer services agents who are readily available to address any concerns. The company sets a new standard for online research peptide and chemical sales.

Insiders, experts, and clients from around the world agree that Peptide Sciences is #1.


  1. Gwyer D, Wragg NM, Wilson SL. Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healing. Cell Tissue Res. 2019 Aug;377(2):153-159. doi: 10.1007/s00441-019-03016-8. Epub 2019 Mar 27. PMID: 30915550.
  2. Vukojevic J, Milavić M, Perović D, Ilić S, Čilić AZ, Đuran N, Štrbe S, Zoričić Z, Filipčić I, Brečić P, Seiverth S, Sikirić P. Pentadecapeptide BPC 157 and the central nervous system. Neural Regen Res. 2022 Mar;17(3):482-487. doi: 10.4103/1673-5374.320969. PMID: 34380875; PMCID: PMC8504390.
  3. Chang CH, Tsai WC, Hsu YH, Pang JH. Pentadecapeptide BPC 157 enhances the growth hormone receptor expression in tendon fibroblasts. Molecules. 2014 Nov 19;19(11):19066-77. doi: 10.3390/molecules191119066. PMID: 25415472; PMCID: PMC6271067.
  4. Sikiric P, Drmic D, Sever M, Klicek R, Blagaic AB, Tvrdeic A, Kralj T, Kovac KK, Vukojevic J, Siroglavic M, Gojkovic S, Krezic I, Pavlov KH, Rasic D, Mirkovic I, Kokot A, Skrtic A, Seiwerth S. Fistulas Healing. Stable Gastric Pentadecapeptide BPC 157 Therapy. Curr Pharm Des. 2020;26(25):2991-3000. doi: 10.2174/1381612826666200424180139. PMID: 32329684.
  5. Sikiric P, Seiwerth S, Rucman R, Turkovic B, Rokotov DS, Brcic L, Sever M, Klicek R, Radic B, Drmic D, Ilic S, Kolenc D, Aralica G, Safic H, Suran J, Rak D, Dzidic S, Vrcic H, Sebecic B. Toxicity by NSAIDs. Counteraction by stable gastric pentadecapeptide BPC 157. Curr Pharm Des. 2013;19(1):76-83. doi: 10.2174/13816128130111. PMID: 22950504.
  6. National Center for Biotechnology Information. PubChem Compound Summary for CID 16132341, Thymosin beta4. Accessed July 22, 2022.
  7. Goldstein AL, Hannappel E, Sosne G, Kleinman HK. Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications. Expert Opin Biol Ther. 2012 Jan;12(1):37-51. doi: 10.1517/14712598.2012.634793. Epub 2011 Nov 10. PMID: 22074294.
  8. Spurney CF, Cha HJ, Sali A, Pandey GS, Pistilli E, Guerron AD, Gordish-Dressman H, Hoffman EP, Nagaraju K. Evaluation of skeletal and cardiac muscle function after chronic administration of thymosin beta-4 in the dystrophin deficient mouse. PLoS One. 2010 Jan 29;5(1):e8976. doi: 10.1371/journal.pone.0008976. PMID: 20126456; PMCID: PMC2813286.
  9. Dorr RT, Lines R, Levine N, Brooks C, Xiang L, Hruby VJ, Hadley ME. Evaluation of melanotan-II, a superpotent cyclic melanotropic peptide in a pilot phase-I clinical study. Life Sci. 1996;58(20):1777-84. doi: 10.1016/0024-3205(96)00160-9. PMID: 8637402.
  10. Mahiques-Santos L. Melanotan [Melanotan]. Actas Dermosifiliogr. 2012 May;103(4):257-9. Spanish. doi: 10.1016/ Epub 2011 Nov 1. PMID: 22051769.
  11. Minakova E, Lang J, Medel-Matus JS, Gould GG, Reynolds A, Shin D, Mazarati A, Sankar R. Melanotan-II reverses autistic features in a maternal immune activation mouse model of autism. PLoS One. 2019 Jan 10;14(1):e0210389. doi: 10.1371/journal.pone.0210389. PMID: 30629642; PMCID: PMC6328175.
  12. Wu LC, Chen F, Lee SL, Raw A, Yu LX. Building parity between brand and generic peptide products: Regulatory and scientific considerations for quality of synthetic peptides. Int J Pharm. 2017 Feb 25;518(1-2):320-334. doi: 10.1016/j.ijpharm.2016.12.051. Epub 2016 Dec 24. PMID: 28027918.
  13. Solomon ZJ, Mirabal JR, Mazur DJ, Kohn TP, Lipshultz LI, Pastuszak AW. Selective Androgen Receptor Modulators: Current Knowledge and Clinical Applications. Sex Med Rev. 2019 Jan;7(1):84-94. doi: 10.1016/j.sxmr.2018.09.006. Epub 2018 Nov 30. PMID: 30503797; PMCID: PMC6326857.
  14. Machek SB, Cardaci TD, Wilburn DT, Willoughby DS. Considerations, possible contraindications, and potential mechanisms for deleterious effect in recreational and athletic use of selective androgen receptor modulators (SARMs) in lieu of anabolic androgenic steroids: A narrative review. Steroids. 2020 Dec;164:108753. doi: 10.1016/j.steroids.2020.108753. Epub 2020 Oct 24. PMID: 33148520.
  15. Adamo, Sal, 3Sench. Peptide sciences is rated “great” with 4.1 / 5 on Trustpilot [Internet]. Trustpilot. 2021 [cited 2022Jul24]. Available from:
  16. Impossible_primary36. R/peptides – [NSFW] experience with peptide sciences… looking to get some 176-191 [Internet]. Reddit. 2021 [cited 2022Jul24]. Available from:

Scientifically Fact Checked by:

David Warmflash, M.D.

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